| Dumfries to Smolyan | 1,581.84 mi (2,545.73 km) |
| Dumfries to Sofia | 1,477.64 mi (2,378.03 km) |
| Dumfries to Sopot | 1,531.70 mi (2,465.04 km) |
| Dumfries to Sozopol | 1,652.05 mi (2,658.72 km) |
| Dumfries to Sredets | 1,636.51 mi (2,633.71 km) |
| Dumfries to Stamboliyski | 1,548.78 mi (2,492.53 km) |
| Dumfries to Stara Zagora | 1,575.12 mi (2,534.91 km) |
| Dumfries to Svilengrad | 1,627.44 mi (2,619.11 km) |
| Dumfries to Svishtov | 1,508.45 mi (2,427.61 km) |
| Dumfries to Targovishte | 1,571.45 mi (2,529.00 km) |
| Dumfries to Teteven | 1,501.26 mi (2,416.04 km) |
| Dumfries to Troyan | 1,519.34 mi (2,445.15 km) |
| Dumfries to Tryavna | 1,548.99 mi (2,492.86 km) |
| Dumfries to Tutrakan | 1,536.34 mi (2,472.51 km) |
| Dumfries to Varna | 1,623.18 mi (2,612.25 km) |
